User manual

Chapter 4 Maintaining the Sun Fire X4200 Server 4-11
4. Identify which CPU and heatsink you are replacing.
The internal system software designation of the two CPUs in the server is shown in
FIGURE 4-7. There is a fault LED on the motherboard for each CPU (see FIGURE 4-8 for
the LED location):
■ LED is off: CPU is OK.
■ LED is lit (amber): CPU has encountered a voltage or heat error condition.
FIGURE 4-7 Sun Fire X4200 Designation of CPUs
FT1
FM0
FT1
FM1
FT1
FM2
FT0
FM0
FT0
FM1
FT0
FM2
CPU1 CPU0
DIMM 0
DIMM 2
DIMM 1
DIMM 3
DIMM 0
DIMM 2
DIMM 1
DIMM 3
Front panel of server
Back panel of server
CPU 1:
CPU 0: